brown



( No Model.) 4 Sheets-Sheet X. A. P. BROWN 8: W. R. KNAUB.

DISK GULTIVATOR.

Patented June 20, 1893.

(No Model.)

4 Sheets-Sheet 2. A. F. BRQWN'KE W. R. KNAUB.

DISK GULTIVATOR.

Patented June 20, 1893.

, gEEllil -(No Model.) 4 Sheets-Sheet a.

A. P. BROWN 8: W. R. KNAUB'.

DISK GULTIVATOR.

No. 499,711. Patented June 20, 1893.

lg mul 4B U A K R W & N W nu R B R A DISK OULTIVA'I'OR.

No. 499,711. Patented June 20, 1893.

T cams PEYERS co. mow-Lima. WASHING UNITED STATES PATENT OFFICE.

ARTHUR F. BROWN AND WILLIAM R. KNAUB, OF DAYTON, OHIO, AssIeNoRs TO THESTODDARD MANUFACTURING COMPANY, OF SAME PLACE.

DISK CULTIVATOR.

SPECIFICATION forming part of Letters Patent No. 499,711, dated June 20,1893.

Application filed May 7, 1892. Serial No. 432,141- (No model.)

.To aZZ whom it may concern.-

Be it known that we, ARTHUR F. BROWN and WILLIAM R. KNAUB, both citizensof the United States, residing at Dayton, in the county of Montgomeryand State of Ohio, have jointly invented certain new and usefulImprovements in Disk Cultivators, of which the following is a full,clear, and exact description, reference being had to the accompanyingdrawings, forming part of this specification.

Our invention relates to that class of disk cultivator-s known asstraddle-row cultivators adapted to cultivate corn from the time theplants are first up until they reach a considerable height, and it hasfor its object the improved construction of such Cultivators wherebytheir capabilities, adjustments, and efficiency are largely increased.

The novelty of our invention will be hereinafter set forth andspecifically pointed out in the claims.

In the accompanying drawings:Figure 1, Sheet 1, is a plan view of acultivator embodying our invention. Fig. 2, Sheet 2, is a side elevationof the same. Fig. 3, Sheet 3, is arear elevation of thesame. Fig. 4,Sheet 4, is a side elevation of the rear of the machine in a modifiedarrangement. Fig. 5, Sheet 4, is an enlarged sectional detail throughthe dotted line 00 a: of Fig.2. Fig. 6, Sheet 4, is a plan view showingthe arrangement of the disk .for an out-throw of the soil.

The same letters of reference are used to indicate identical parts inall the figures.

The main frame of the machine, as seen in Figs. 1,2 and 3, is composedof the vertical arch-plate A, of metal, to which at the top are rigidlysecured two tubular metal bars 15 extending forward and parallel to eachother for some distance and then converging and united at their forwardends to constitute the pole. Just at the point where the bars B begin toconverge they are united by a crosspiece 0 rigidly secured thereon andfrom which brace bars D extend down and back and are secured to the archplate A near its lower end on each side. These bars D are provided withfoot rests a for the drivers feet.

E F are bars secured to the top of the arch plate and extendingrearwardly therefrom to afford a support for the drivers seat G.

Pivoted as at b, Fig. 3, on the rear side of the arch-plate near itsbottom and on each side is a bearing sleeve H normally standing verticaland secured by a bolt 0 extending through one of a series of holes in aplate d projecting from the upper end of the sleeve and through thearch-plate. J ournaled in each sleeve H is a round standard I whichextends down and is bent first inward and then outward horizontally toform the axle for each disk gang, on which axle are mounted, in thisinstance two, concavo-convex disks J properly spaced and free to revolveon the axle. Fast upon each standard I just below the sleeve H is a barK which extends out over the disks J and has its end bent down andsecured to the outer projecting end of the axle, which bar constitutes acombined gang bar and standard for the outer end of the gang.

Encompassing the bars B just behind the cross piece 0 is a slide L withrear extensions and a rear cross-piece M which moves with the slide Lupon the bars B. The double tree N is pivoted by a bolt e upon the slideL and extends downward on each side thereof and has secured at its ends,in any suitable manner, the single trees 0. To relieve the bolt 6 ofpart of the draft strain we employ rods f secured at their forward endsto the double tree near its ends and at their rear upper ends to a chain9 taut around a sheave h pivoted at the proper angle upon thecross-piece M. In this manner the draft strain is thrown mainly upon thecross-piece M and bars B at a point nearly over the cutting disks Whilethe chain and sheave permit the usual vibrations of the double tree. Theouter ends of the bars K are connected to the slide L by rods 2'.

upon the pole.

As shown in Figs. 1 and 2, the rodsvl we employ a lever P pivoted as atj upon the cross-piece O and having pivoted to it a link whose rear endis pivoted, as at Z, upon the slide. The driver by pulling back thelever P causes the slide L and cross-piece M to slip back upon thebars Band the resistance of the earth at once throws the gangs back to anangling position, as will be readily understood. When so thrown back thelink 70 and lever P are toggle-locked so that the gangs will not resumetheir straight line position again until the lever P is thrown forwardby the driver.

The machine so far described would make an efficient cultivator, and toreverse the gangs to get a throw-out cultivator it is only necessary touncouple the rear ends of the rods 2' and swing the gangs bodily aroundon the vertical standards I and recouple the rods tie the then adjacentends of the gangs in the same holes in which they were before coupled.By removing the bolts 0 and tilting the sleeves H on their pivots b thegangs can be tilted vertically in either direction and relocked to suitthe requirements of the work to be done. To further increase theefficiency of the cultivator, however, we provide two independent innerdisks Q whose axes are out of line with and preferably in advance of theaxes of the gangs and which have four adj ustments; namely, an in andout adjustment to bring their cutting edges nearer to or farther fromthe row of plants, a vertical adj ustment to regulate the depth of theircut so as not to injure the roots of the plants, a bodily vertical throwto take them entirely out of action or to bring them into action and anangling adjustment, and these things we accomplish in the followingmanner: On the front of each side of the arch is a flanged way R withwhich engages a vertical slide S, Figs. 1, 2 and 5, coupledby a pivotedlink m to a bell-crank lever T pivoted as at n to a bracket on the arch.The short arm of the lever T, engaging the bracket to Which it ispivoted, serves as a stop to limit the throw of the lever from ahorizontal position of its long arm forward to a similar positionbackward. The fronts of the slides S are rounded and upon each is fittedthe concaved rear side of a bracket U which is locked in place by a bolt0 projecting through a horizontal slot p in the slide and through aperforation in the rear wall of the bracket. The forward end of thebracket has a vertical bore in which is fitted a standard V having atits lower end a horizontal spindle upon which the disks Q arerespectively journaled'. The upper ends of the standards V are threadedto receive conically recessed nuts (1 which engage cone bosses on thebracket while just under the bracket of each standard .is fitted aconically recessed washer 1* having notches of varying depth on itslower side engaging a pin 8 inserted through the standard. The upperrecessed end of the washer r likewise engages a conical boss on thebracket. It will be seen from this construction that to accomplish thein and out adjustment of the disks Q it is only necessary to loosen thenut 15 of the bolt 0 and to swing the bracket in or out as indicated bythe dotted lines Fig. 5 and to tighten the nut after adjustment to clampthe parts. So, also, to effect the vertical adjustment it is onlynecessary to unscrew the nut q and turn the washerrarou nd. Then afterslidingthe standard up or down as desired the pin is re-engaged in theproper notch in the Washer and the nut q is screwed down to reclamp theparts. To effect the angling it is only necessary to loosen the screw qand to turn the standard in its bearing in the bracket and then reclampit by tightening up the screw again. To effect the bodily throw it isonly necessary to turn over the lever T as seen by the dotted lines inFig. 2, when the slide S is raised carrying with it the bracket,standard, and disk Q. This the driver can do instantly with his footwithout getting off his seat on the machine, as for instance when hewants to turn the machine around or for other purposes. In a like mannerhe can lower the parts by throwing the lever T back again to theposition of the solid lines, Fig. 2, and it will be noticed that when inthis position the link m and bell-crank are toggle-locked to hold thedisks Q down to their work.

In Fig. 4 we have shown .the positions of the gangs and inner disksreversed, that is to say, the brackets with the inner disks and otherattachments are on the rear side of the arch plate, while the gangsleeves H are upon the front side of the arch. The only effect of thisis to bring the inner disks in the rear instead of in front of the linesof the gangs.

Again, in Fig. 6 we have shown the cultivator arranged to throw theearth outward. Here the disks J are swung around on their standards Iand the rods 7: re-engaged to the adjacent ends of the bars K, as beforedescribed, while the forward endsof the rods 11 are connected to thelugs a, see Fig. 2, to which the draw rods '0 for the guards W areattached when in use. The brackets U are set outward as shown and thedisks Q are reversed and given any degree of angling desired.

The remaining feature of our invention consists in providing rows ofperforations a, Fig. 2, in the usual guards W which are drawn by thebars '0 in front and suspended by the chain win the rear. By means ofthese perforations some of the earth thrown against the guards is siftedthrough these perforations around the bases of the plants, which isoften desirable.

Any suitable scrapers as y may be provided for all of the disks.

Having thus fully described our invention, we claim- 1. In a diskcultivator, an inner disk carried by a bearing on a slide havingvertical play, in combination with a lever for raising, lowering andlocking said slide.

2. In a disk cultivator, the combination with a bodily adjustable diskgang, of an independent inner disk revoluble on an axis adjustable,toward or from the row of plants, and in a horizontal plane to changethe angle of the disk. 1

3. In a disk cultivator, the combination with a bodily adjustable diskgang, of an independent inner disk revoluble on an axis adjustable,toward or from the row of plants, vertically to regulate the depth ofthe cut, and in a horizontal plane to change the angle of the disk.

4. In a 'disk cultivator, the combination with a disk gang, of aninnerdisk carried by a bearing on a slide having vertical play and alever for raising, lowering, and locking said slide.

5. In a disk cultivator, the combination, of a backwardly and forwardlymovable double tree, means for locking the same in its adjustedpositions, pivoted disk gangs connected to the double tree, and innerdisks revoluble on axes adjustable toward and from each other,substantially as described.

6. In a disk cultivator, the combination, of a backwardly and forwardlymovable double tree, means for locking the same in its adjustedpositions, pivoted disk gangs connected to the double tree, and innerdisks revoluble on axes adjustable toward and from each other and inhorizontal planes to change the angles of said inner disks,substantially as described.

7. In a disk cultivator, the combination, of a backwardly and forwardlymovable double tree, means for locking the same in its adj ustedpositions, pivoted disk gangs connected to the double tree, and innerdisks revoluble on axes adjustable, toward and from each other, andvertically to regulate the depth of the cut, substantially as described.

8. In a disk cultivator, the combination, of a backwardly and forwardlymovable double tree, means for locking the same in its adj ustedpositions pivoted disk gangs connected to the double tree, and innerdisks revoluble on axes adjustable, toward and from each other,vertically to regulate the depth of the cut, and in horizontal planes tochange the angles of the inner disks, substantially as described.

9. In a disk cultivator, the combination, of a backwardly and forwardlymovable double tree, means for locking the same in its adj ustedpositions, pivoted disk gangs connected to the double tree, and innerdisks carried by hearings on slides having vertical play, and levers forraising, lowering and locking said slides, substantially as described.

10. In a disk cultivator, the combination, of disk gangs, means forangling the same, and inner disks revoluble on axes adjustable towardand from each other.

11. In a disk cultivator, the combination, of disk gangs, means forangling the same,

and inner disks carried on axes adjustable, toward and from each other,and vertically to regulate the depth of cut.

12. In a disk cultivator, the combination, of disk gangs, means forangling the same, and inner disks carried on axes adjustable, toward andfrom each other, and in horizontal planes to change the angles of theinner disks.

13. In a disk cultivator, the combination, of disk gangs, means forangling the same, and inner disks carried on axes adjustable, toward andfrom each other, vertically to regulate the depth of cut, and inhorizontal planes to change the angles of the inner disks.

14. In a disk cultivator, the combination. of disk gangs means forangling the same, inner disks carried by bearings on slides havingvertical play, and levers for raising, lowering and locking said slides.

15. In a disk cultivator, the combination, of disk gangs, means forangling the same, and inner disks having four independent adjustments,Viz., toward and from each other, angling, vertical to regulate thedepth of cut, and vertical to bring them into or take them out ofaction.

16. In a disk cultivator, the combination of the arch A, the paralleland convergent bars B secured thereto and forming the pole, the slide Lthereon having the double treeN pivoted thereto, a forward stop for theslide, the pivoted disk gangs connected to the double tree, and thelever P for operating the slide, substantially as described.

17. In a disk cultivator, the combination, of the arch A, the paralleland convergent bars B secured thereto and forming the pole, the slide Lthereon having the double tree N pivoted thereto, a forward stop for theslide, the sheave h connected to the bars 13 andmovable with the slide,the rods f and chain g passed around said sheave, the pivoted disk gangsconnected to the double tree, and the lever P for operating the slide,substantially as described.

18. In a disk cultivator, the combination of the bearing S, the bracketU adjustable thereon the standard V journaled through said bracket andadjustable therein by means of the pin 8, washer 'r, and nut q, and thedisk Q carried by said standard, substantially as described.

19. In a disk cultivator, the combination of the way R, the slide Sthereon carrying the bracket U and disk Q, the lever T and link on,substantially as described.

ARTHUR F. BROWN. WVILLIAM R. KNAUB.

Witnesses as to Brown:

GEO. W. JENKINS, J. E. GRANGER. WVitnesses as to Knaub:

W. J. JONES, T. S. J ONES.

